The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 2005
Filed:
Oct. 04, 2002
Applicants:
Jonathan D. King, Lexington, TN (US);
Tommy D. Hollingsworth, Leander, TX (US);
Inventors:
Jonathan D. King, Lexington, TN (US);
Tommy D. Hollingsworth, Leander, TX (US);
Assignee:
Maytag Corporation, Newton, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F001/40 ;
U.S. Cl.
CPC ...
Abstract
An off-line switching power supply for generating negative voltages without a transformer, comprising a line voltage connection for receiving a line voltage, an inductor having a first terminal and a second terminal, a power MOSFET having a drain and a source, the drain electrically connected to the first terminal of the inductor, the drain electrically connected to the first terminal of the inductor, the source electrically connected to the voltage and the second terminal of the inductor providing a negative output voltage.